研究表明,随着金刚石磨粒粒度的减小,塑性流动变形在加工过程中起着越来越重要的作用。
The results showed that the plastic deformation played a more important role in the polishing of granite with the decrease of the grain size of the diamond bonded in the disc.
塑性流动的特殊情况是冷变形,发生在硫化橡胶长时间连续承受低应力时以及金属蠕变时。
Special instances of plastic flow are cold flow, which occurs in vulcanized rubber after low stress has been continuously applied for a long time, and creep of metals.
如图4.2所示,晶粒流动的方向就是在塑性变形期间结晶排列的方向。
As shown in Fig. 4.2, grain flow is the direction of the pattern that the crystals take during plastic deformation.
如果在撤去应力后变形仍保留,则称此材料呈现塑性流动。
If, when the stress is removed, the deformation remains, the material is said to exhibit plastic flow.
采用塑化松香作为岩石圈延性下层的相似材料,进行了板内塑性流动网络及多层构造变形的物理模拟实验。
The use of plasticized rosin as an analog material of the ductile lower lithosphere provides an effective approach to modelling intraplate plastic flow network and multi layer tectonic deformation.
结果表明,硬度实验类似于压缩实验中的镦粗,硬度计压头可使金属基体发生塑性变形及粘性流动。
It demonstrated that the experiment of hardness is likely to upset in the experiment of compression. Hardness tester indenter make matrix metal plastic deformation and viscous flow happen.
采用插值近似,建立了空洞闭合的解析模型,发现空洞变形的主要机理来自于空洞周围基体材料的塑性流动。
Based on an approximate interpolation scheme, an analytical model for void closure in nonlinear plastic materials was established.
针对盒形件拉深成形时法兰变形区的变形进行了材料塑性流动的理论分析,提出了位移速度差诱发剪应力的观点。
In of displacement induces shear stress. Shear deformation this paper, flow law of material is theoretically analysed based on deformation of the flange deformed area in box drawing.
根据塑性力学流动理论,分析推导了变形区三维变形和应力的数学模型。
From the plastic flow theory, the three-dimensional deformations and stresses of the deformation zone are formulated.
本文采用莫尔-库仑屈服准则和非关联塑性流动法则分析了轴对称软岩巷道的变形规律。
In this paper, the deformation of the axisymmetrical tunnel in soft rocks is studied by using the Mohr-Coulomb yield criterion and non-associative plastic flow rule.
改进的反向模拟法采用了一种基于塑性流动理论的本构方程,可以充分考虑应变历史对塑性变形的影响。
The constitutive equation in the present method is based on flow theory of plasticity to consider the loading history, while deformation theory of plasticity in the classical inverse analysis method.
蠕变过程中粘塑性变形占主导,因而其三轴蠕变曲线没有出现渐进流动阶段。
Because of the dominance of viscoplastic deformation in the creep process, creep curves under triaxial compression behave without the third phase of atypical creep curve, viz.
金属的流动发生在金属的塑性变形范围之内,因此在施加的外力去除之后弯曲保持永久的变形。
Metal flow takes place within the plastic range of the metal, so that the bend retains a permanent set after removal of the applied stress.
岩石圈下层的网状塑性流动,作为包含塑性流动网络的黏塑性流动,控制着大陆板块内部的构造变形和动力学过程。
Netlike plastic flow in the lower lithosphere, as viscoplastic flow involving plastic flow network, controls tectonic deformation and dynamic processes within the continental plate.
强大的应力使材料发生塑性变形,产生塑性流动,为界面生成键合强度提供良好的条件;
The powerful stress is big enough to cause plastic strain and plastic flow on the interface which can provide good conditions for bonding.
实验表明:半固态浆料模锻成形的变形方式是不同的,不同的固相率下其固液两相的塑性流动机制也是不同的;
The experiment showed that the mode of deformation and the plastic flow mechanism of solid and liquid phase under different solid phase ratio were different;
平砧锻造是塑性大变形问题,本文采用随动坐标系跟踪流动质点,利用能量法分步计算质点位移增量、等效应变场等,然后叠加。
To improve the accuracy of large floating point number calculatation, an iterative approach of inverse transformation for Gauss projection with floating coordinate system is presented.
平砧锻造是塑性大变形问题,本文采用随动坐标系跟踪流动质点,利用能量法分步计算质点位移增量、等效应变场等,然后叠加。
To improve the accuracy of large floating point number calculatation, an iterative approach of inverse transformation for Gauss projection with floating coordinate system is presented.
应用推荐